Refrigerating device.



Patented Jan. 18, 1916.

J. G. RICHERT. REFRIGERATING'DEVICE. APPLICATION FILED DEC I8, 1913 wjjrzesses are to bekept cooled and then back to JOHAN GUSTAF RICHERT, 0F STOCKHOLM, SWEDEN.

REFRIGERATING DEVICE.

Specification of Letters Patent.

Application filed December 18, 1913. Serial No. 807,477.

To all whom it may concern:

Be it known that I, JOHAN GUSTAF RICHERT, a subject of the King of Sweden, residing at Norrmalmstorg No. 16, Stockholm, in the Kingdom of Sweden, have invented certain new and useful Improvements in Refrigerating Devices, of which the following is a specification.

This-invention relates to refrigerating devices of the kind in which brine is pumped from a chamber containing ice and preferably salt through pipes to the spaces whiplh t e ice receptacle anda pump basin.

This invention relates to a special construction of such apparatus by means of which the prevailing temperature can be regulated with extreme accuracy and simplicity and is illustrated in the annexed drawings in which Figures 1 and 2 are respectively diagrammatic side and plan views of one embodimerit of theinvention. Figs. 3, 4, 5 and 6 are respectively diagrammatic side views of four further embodiments.

In Figs. 1 and 2 a is the ice receptacle, b the pump basin, 0 the pump, (1 the refrigerating pipes, and e and f two return pipes leading respectively to the ice receptacle a and the pump basin 5, while g is the regulating valve. In the said pump basin 6 is arranged a salt receptacle h in such a manner that all the liquid flowing from the ice receptacle is caused to pass through the salt. This receptacle a is filled with crushed ice and the brine is spread over the surface of the ice from the return pipe 6, drops through the perforated bottom of the ice receptacle a into the pump basin, passes through the salt receptacle h, and is finally mixed with brine from the return pipe The temperature of the mixed brine is regulated by the valve 9. If this brine is properly inclosed all the brine passes through the return pipe e and therefore through the ice and salt. This brine then becomes saturated with salt and its temperature falls to about 5 F. If, on the other hand, the valve 9 is fully opened, the whole of the brine passes through the return pipe f without being cooled at all and the temperature will then be 32 F. Any degree of temperature between these two may be obtained by opening the valve g to the necessary extent so that a portion of salt receptacle can the brine passes through the ice and salt and is cooled while the other portion passes into the pump basin.

This pump basin 5 is arranged in the usual manner with bottom and overflow outlets, scumboard and strainer. The pump 0 is driven either by a motor or by hand. In cases where small spaces are to be cooled it is sufficient to pump for one hour or half an hour per day, the temperature of the room being kept constant by means of brine stored 1n the pump basin 6 and the refrigerating pipes d.

These refrigerating pipes d are arranged beneath the roof of the room so as to insure a constant circulation of the air in drying. If the air is not circulated sufiiciently for the drying, the circulation may be increased by means of a fan.

he construction shown in Fig. 3 is similar to that shown in Figs. 1 and 2 with the single exception that the receptacle a which is filled with crushed ice is arranged somewhat differently, as shown in the drawing.

It will be understood that the salt receptacle may be located in the pipe 6 if desired or between the receptacle a and the basin b in a special pipe. The former of these two arrangements is shown in Fig. 4 where the salt receptacle h is located in the pipe c. When the salt receptacle is arranged in this manner it may happen offered by the salt to the passage of the water through the pipee may be varied depending upon the quantity and formation of the salt crystals. In order to avoid this objection the two pipes e and f are, as shown in Fig. 5, conneced to the refrigerating pipe 01 in such a way that the liquid by its own weight is forced through the salt receptacle. The pipe e leading from the refrigerating pipe (1 is formed with two branches 0 and e which at their lower ends are closely adjacent to the widened ends of the two pipes e and f. The ends of these pipes or the end of the pipe 6 reaches above the upper surface of the salt receptacle.

The construction shown in Fig. 6 is extremely suitable in cases where a mixture of ice and salt is employed, as in this case the be omitted. If salt ice is used the temperature of the brine will be constant, but if salt mixed with ice is employed variations in the temperature may Patented Jan. 18, 1916.

that the resistance 1. In a. refrigerating device, a refrigerating member, an Ice receptacle, a salt re- I ceptacle, a pump for the circulation of brine through the refrigerating member, a pump basin, a return pipe leading through said ice receptacle and salt receptacle and a second return pipe leading directly to the pump basin.

2. Ina refrigerating device, a refrigerating member, an ice and salt receptacle, a

pump for the circulation of brine through 15 the refrigerating member, a pump basin, a return pipe leading through the ice and salt receptacle and a second return pipe leading directly to the pump basin.

In testimony whereof I have afiixed my 2) signature in presence of two witnesses.

JOHAN GUSTAF RIGHERT.

Witnesses GRETA PRIEN, HARRY ALBRITE. 

